BS 903-A63:1995 Physical testing of rubber - Part A63. Method for determination of crystallization effects by hardness measurements
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This International Standard specifies a test based on hardness measurements for determining the pro-gressive stiffening of rubber with time, caused by crystallization. It is limited to materials having an initial hardness at test temperature of 10 IRHD to 85 IRHD.
The method is applicable to raw, unvulcanized (corn pounded), and vulcanized rubber. It is mainly of interest for rubber with a marked crystallization tendency at temperatures experienced in cold climates, such
as, for instance, chloroprene and natural rubber.
The method is not applicable to fast-crystallizing materials which crystallize to a considerable degree within the time-span of 15 min used for conditioningat test temperature.
Primary Item Type:
British Standard
Identifiers:
ICS 83.060
Language:
English
Subject Keywords:
Physical testing; Hardness testing; Stiffness; Temperature; Synthetic rubber; Test equipment; Hardness measurement; Crystallization; Plastics and rubber technology; Natural rubber; Testing conditions; Vulcanized rubber; Test duration; Low temperatures; Specimen preparation
